Recent Advances in Gastric Tonometry

  • G. Gutierrez
Conference paper
Part of the Yearbook of Intensive Care and Emergency Medicine 1994 book series (YEARBOOK, volume 1994)


In the intensive care setting, monitoring refers to the measurement of physiological and biochemical signals to warn the health care team of changes in life sustaining processes. The ultimate aims of monitoring are to decrease morbidity and to improve survival. Early attempts at monitoring critically ill patients consisted of frequent vital signs measurements, continuous EKG tracings, and the intermittent sampling of blood to measure key biochemical parameters, such as glucose and electrolytes. The introduction of arterial and pulmonary artery catheters allowed the monitoring of systemic and central hemodynamic parameters in many ICU patients, especially in those with acute respiratory failure, cardiac dysfunction, or sepsis. Measures of cardiac output and of arterial and mixed venous blood O2 contents made possible the calculation of systemic oxygen delivery (DO2), oxygen consumption (VO2) and the oxygen extraction ratio. The interpretation of these parameters to characterize the state of tissue oxygenation, however, has proven to be more difficult than initially expected [1–6].


Ischemic Colitis Gastric Tonometry Oxygen Extraction Ratio Mesenteric Occlusion Tissue Dysoxia 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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© Springer-Verlag Berlin Heidelberg 1994

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  • G. Gutierrez

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